Style: Apply clang-tidy fixes

• `modernize-use-default-member-init` and `readability-redundant-member-init`
• Minor adjustments to `.clang-tidy` to improve syntax & remove redundancies

.clang-tidy

@@ -1,14 +1,12 @@
----
-Checks: >-
-  -*,
-  cppcoreguidelines-pro-type-member-init,
-  modernize-redundant-void-arg,
-  modernize-use-bool-literals,
-  modernize-use-default-member-init,
-  modernize-use-nullptr,
-  readability-braces-around-statements,
-  readability-redundant-member-init
-WarningsAsErrors: ''
+Checks:
+  - -*
+  - cppcoreguidelines-pro-type-member-init
+  - modernize-redundant-void-arg
+  - modernize-use-bool-literals
+  - modernize-use-default-member-init
+  - modernize-use-nullptr
+  - readability-braces-around-statements
+  - readability-redundant-member-init
 HeaderFileExtensions: ['', h, hh, hpp, hxx, inc, glsl]
 ImplementationFileExtensions: [c, cc, cpp, cxx, m, mm, java]
 HeaderFilterRegex: (core|doc|drivers|editor|main|modules|platform|scene|servers|tests)/
@@ -19,4 +17,3 @@ CheckOptions:
   modernize-use-bool-literals.IgnoreMacros: false
   modernize-use-default-member-init.IgnoreMacros: false
   modernize-use-default-member-init.UseAssignment: true
-...

core/typedefs.h

@@ -315,6 +315,4 @@ struct BuildIndexSequence<0, Is...> : IndexSequence<Is...> {};
 #define ___gd_is_defined(val) ____gd_is_defined(__GDARG_PLACEHOLDER_##val)
 #define GD_IS_DEFINED(x) ___gd_is_defined(x)
 
-#define FORCE_SEMICOLON ;
-
 #endif // TYPEDEFS_H

core/variant/variant.cpp

@@ -2719,8 +2719,7 @@ Variant::Variant(const Vector<Plane> &p_array) :
 	}
 }
 
-Variant::Variant(const Vector<Face3> &p_face_array) :
-		type(NIL) {
+Variant::Variant(const Vector<Face3> &p_face_array) {
 	PackedVector3Array vertices;
 	int face_count = p_face_array.size();
 	vertices.resize(face_count * 3);
@@ -2739,8 +2738,7 @@ Variant::Variant(const Vector<Face3> &p_face_array) :
 	*this = vertices;
 }
 
-Variant::Variant(const Vector<Variant> &p_array) :
-		type(NIL) {
+Variant::Variant(const Vector<Variant> &p_array) {
 	Array arr;
 	arr.resize(p_array.size());
 	for (int i = 0; i < p_array.size(); i++) {
@@ -2749,8 +2747,7 @@ Variant::Variant(const Vector<Variant> &p_array) :
 	*this = arr;
 }
 
-Variant::Variant(const Vector<StringName> &p_array) :
-		type(NIL) {
+Variant::Variant(const Vector<StringName> &p_array) {
 	PackedStringArray v;
 	int len = p_array.size();
 	v.resize(len);
@@ -2908,8 +2905,7 @@ Variant::Variant(const IPAddress &p_address) :
 	memnew_placement(_data._mem, String(p_address));
 }
 
-Variant::Variant(const Variant &p_variant) :
-		type(NIL) {
+Variant::Variant(const Variant &p_variant) {
 	reference(p_variant);
 }
 

core/variant/variant.h

@@ -814,8 +814,7 @@ public:
 	static void unregister_types();
 
 	Variant(const Variant &p_variant);
-	_FORCE_INLINE_ Variant() :
-			type(NIL) {}
+	_FORCE_INLINE_ Variant() {}
 	_FORCE_INLINE_ ~Variant() {
 		clear();
 	}

drivers/vulkan/rendering_device_driver_vulkan.cpp

@@ -4017,7 +4017,7 @@ RDD::UniformSetID RenderingDeviceDriverVulkan::uniform_set_create(VectorView<Bou
 	}
 
 	// Need a descriptor pool.
-	DescriptorSetPools::Iterator pool_sets_it = {};
+	DescriptorSetPools::Iterator pool_sets_it;
 	VkDescriptorPool vk_pool = _descriptor_set_pool_find_or_create(pool_key, &pool_sets_it);
 	DEV_ASSERT(vk_pool);
 	pool_sets_it->value[vk_pool]++;

drivers/vulkan/rendering_device_driver_vulkan.h

@@ -487,7 +487,7 @@ private:
 	struct UniformSetInfo {
 		VkDescriptorSet vk_descriptor_set = VK_NULL_HANDLE;
 		VkDescriptorPool vk_descriptor_pool = VK_NULL_HANDLE;
-		DescriptorSetPools::Iterator pool_sets_it = {};
+		DescriptorSetPools::Iterator pool_sets_it;
 	};
 
 public:

editor/editor_node.h

@@ -789,7 +789,7 @@ public:
 
 	struct AdditiveNodeEntry {
 		Node *node = nullptr;
-		NodePath parent = NodePath();
+		NodePath parent;
 		Node *owner = nullptr;
 		int index = 0;
 		// Used if the original parent node is lost

editor/gui/editor_quick_open_dialog.cpp

@@ -649,10 +649,11 @@ QuickOpenDisplayMode QuickOpenResultContainer::get_adaptive_display_mode(const V
 
 	for (const StringName &type : grid_preferred_types) {
 		for (const StringName &base_type : p_base_types) {
-			if (base_type == type || ClassDB::is_parent_class(base_type, type))
+			if (base_type == type || ClassDB::is_parent_class(base_type, type)) {
 				return QuickOpenDisplayMode::GRID;
 			}
 		}
+	}
 
 	return QuickOpenDisplayMode::LIST;
 }

editor/plugins/tiles/tile_set_atlas_source_editor.h

@@ -91,7 +91,7 @@ public:
 		TileSetAtlasSourceEditor *tiles_set_atlas_source_editor = nullptr;
 
 		Ref<TileSetAtlasSource> tile_set_atlas_source;
-		RBSet<TileSelection> tiles = RBSet<TileSelection>();
+		RBSet<TileSelection> tiles;
 
 	protected:
 		bool _set(const StringName &p_name, const Variant &p_value);

modules/betsy/image_compress_betsy.h

@@ -91,10 +91,10 @@ class BetsyCompressor : public Object {
 	RenderingDevice *compress_rd = nullptr;
 	RenderingContextDriver *compress_rcd = nullptr;
 	HashMap<String, BetsyShader> cached_shaders;
-	RID src_sampler = RID();
+	RID src_sampler;
 
 	// Format-specific resources.
-	RID dxt1_encoding_table_buffer = RID();
+	RID dxt1_encoding_table_buffer;
 
 	void _init();
 	void _assign_mt_ids(WorkerThreadPool::TaskID p_pump_task_id);

modules/navigation/nav_agent.h

@@ -67,7 +67,7 @@ class NavAgent : public NavRid {
 	uint32_t avoidance_mask = 1;
 	real_t avoidance_priority = 1.0;
 
-	Callable avoidance_callback = Callable();
+	Callable avoidance_callback;
 
 	bool agent_dirty = true;
 

modules/openxr/extensions/openxr_extension_wrapper_extension.cpp

@@ -298,8 +298,7 @@ void OpenXRExtensionWrapperExtension::register_extension_wrapper() {
 	OpenXRAPI::register_extension_wrapper(this);
 }
 
-OpenXRExtensionWrapperExtension::OpenXRExtensionWrapperExtension() :
-		Object(), OpenXRExtensionWrapper() {
+OpenXRExtensionWrapperExtension::OpenXRExtensionWrapperExtension() {
 	openxr_api.instantiate();
 }
 

scene/3d/skeleton_3d.h

@@ -162,7 +162,7 @@ private:
 	Vector<int> parentless_bones;
 	AHashMap<String, int> name_to_bone_index;
 
-	mutable StringName concatenated_bone_names = StringName();
+	mutable StringName concatenated_bone_names;
 	void _update_bone_names() const;
 
 	void _make_dirty();

scene/3d/skeleton_ik_3d.h

@@ -131,7 +131,7 @@ class SkeletonIK3D : public SkeletonModifier3D {
 	real_t min_distance = 0.01;
 	int max_iterations = 10;
 
-	Variant target_node_override_ref = Variant();
+	Variant target_node_override_ref;
 	FabrikInverseKinematic::Task *task = nullptr;
 
 #ifndef DISABLE_DEPRECATED

scene/gui/code_edit.h

@@ -251,13 +251,13 @@ private:
 		Ref<Texture2D> completion_color_bg;
 
 		Color breakpoint_color = Color(1, 1, 1);
-		Ref<Texture2D> breakpoint_icon = Ref<Texture2D>();
+		Ref<Texture2D> breakpoint_icon;
 
 		Color bookmark_color = Color(1, 1, 1);
-		Ref<Texture2D> bookmark_icon = Ref<Texture2D>();
+		Ref<Texture2D> bookmark_icon;
 
 		Color executing_line_color = Color(1, 1, 1);
-		Ref<Texture2D> executing_line_icon = Ref<Texture2D>();
+		Ref<Texture2D> executing_line_icon;
 
 		Color line_number_color = Color(1, 1, 1);
 

scene/gui/text_edit.h

@@ -139,7 +139,7 @@ private:
 			Variant metadata;
 			bool clickable = false;
 
-			Ref<Texture2D> icon = Ref<Texture2D>();
+			Ref<Texture2D> icon;
 			String text = "";
 			Color color = Color(1, 1, 1);
 		};

scene/resources/2d/skeleton/skeleton_modification_stack_2d.h

@@ -64,7 +64,7 @@ public:
 		execution_mode_physics_process
 	};
 
-	Vector<Ref<SkeletonModification2D>> modifications = Vector<Ref<SkeletonModification2D>>();
+	Vector<Ref<SkeletonModification2D>> modifications;
 
 	void setup();
 	void execute(float p_delta, int p_execution_mode);

scene/resources/2d/tile_set.h

@@ -836,7 +836,7 @@ private:
 	bool flip_v = false;
 	bool transpose = false;
 	Vector2i texture_origin;
-	Ref<Material> material = Ref<Material>();
+	Ref<Material> material;
 	Color modulate = Color(1.0, 1.0, 1.0, 1.0);
 	int z_index = 0;
 	int y_sort_origin = 0;

servers/rendering/renderer_rd/storage_rd/texture_storage.h

@@ -102,9 +102,9 @@ private:
 	/* Canvas Texture API */
 
 	struct CanvasTextureCache {
-		RID diffuse = RID();
-		RID normal = RID();
-		RID specular = RID();
+		RID diffuse;
+		RID normal;
+		RID specular;
 	};
 
 	class CanvasTexture {

servers/rendering/shader_language.h

@@ -1213,7 +1213,7 @@ public:
 	struct ShaderCompileInfo {
 		HashMap<StringName, FunctionInfo> functions;
 		Vector<ModeInfo> render_modes;
-		VaryingFunctionNames varying_function_names = VaryingFunctionNames();
+		VaryingFunctionNames varying_function_names;
 		HashSet<String> shader_types;
 		GlobalShaderUniformGetTypeFunc global_shader_uniform_type_func = nullptr;
 		bool is_include = false;

tests/servers/test_navigation_server_3d.h

@@ -49,7 +49,7 @@ public:
 	}
 
 	unsigned function1_calls{ 0 };
-	Variant function1_latest_arg0{};
+	Variant function1_latest_arg0;
 };
 
 static inline Array build_array() {